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Erection - abuad lms
... system (ANS), causing nitric oxide (a vasodilator) levels to rise in the trabecular arteries and smooth muscle of the penis. The arteries dilate causing the corpora cavernosa of the penis (and to a lesser extent the corpora spongiosum) to fill with blood; simultaneously the ischiocavernosus and bulb ...
... system (ANS), causing nitric oxide (a vasodilator) levels to rise in the trabecular arteries and smooth muscle of the penis. The arteries dilate causing the corpora cavernosa of the penis (and to a lesser extent the corpora spongiosum) to fill with blood; simultaneously the ischiocavernosus and bulb ...
Chapter 19
... Baroreceptors respond to rapidly changing conditions like when you change posture ...
... Baroreceptors respond to rapidly changing conditions like when you change posture ...
Renal physiology
... Renal blood flow (RBF) o In 70 Kg man , for both kidney RBF = 1.1 L/min (22% of CO) The cortex receives most RBF The medulla only gets 1-2% of RBF which going to the vasa recta o Regulation mechanism of RBF are similar to those mechanism that regulate GFR (will be discussed below) (renal artery ...
... Renal blood flow (RBF) o In 70 Kg man , for both kidney RBF = 1.1 L/min (22% of CO) The cortex receives most RBF The medulla only gets 1-2% of RBF which going to the vasa recta o Regulation mechanism of RBF are similar to those mechanism that regulate GFR (will be discussed below) (renal artery ...
Chapter 26: Fluid, Electrolyte, and Acid-Base Balance
... 25% is reclaimed in the loops of Henle ...
... 25% is reclaimed in the loops of Henle ...
GCSE Biology Specification (For teaching from 2016
... Practical work is an intrinsic part of this specification. It is vitally important in developing a conceptual understanding of many topics and it enhances the experience and enjoyment of science. The practical skills developed are also fundamentally important to learners going on to further study in ...
... Practical work is an intrinsic part of this specification. It is vitally important in developing a conceptual understanding of many topics and it enhances the experience and enjoyment of science. The practical skills developed are also fundamentally important to learners going on to further study in ...
Maintaining a Balance #7
... appropriate control center where an effector is put into place to counteract the change In mammals, effectors may take the form of muscles or glands o Muscles contract or relax, bringing about movement in the body e.g. shivering to maintain heat o Glands secrete a chemical substance e.g. saliva gl ...
... appropriate control center where an effector is put into place to counteract the change In mammals, effectors may take the form of muscles or glands o Muscles contract or relax, bringing about movement in the body e.g. shivering to maintain heat o Glands secrete a chemical substance e.g. saliva gl ...
Acid Base
... pH: A measurement of acidity or alkalinity. A pH of less than 7.35 is considered acidosis. Hypoxia: A state of reduced oxygen availability to a body as a whole, or to a region or specific tissues in a body. Hypoxemia: Decreased oxygen content in the blood, measured by partial pressure of oxygen (pO2 ...
... pH: A measurement of acidity or alkalinity. A pH of less than 7.35 is considered acidosis. Hypoxia: A state of reduced oxygen availability to a body as a whole, or to a region or specific tissues in a body. Hypoxemia: Decreased oxygen content in the blood, measured by partial pressure of oxygen (pO2 ...
Body in Balance - Science4Inquiry.com
... screen” so that the web page advertisements located on the right-hand side and underneath the video will not be seen. In addition, please be on the lookout for “pop up” ads while the video is playing 2. Teacher will ask students to THINK about the following question: a. What is one word you would us ...
... screen” so that the web page advertisements located on the right-hand side and underneath the video will not be seen. In addition, please be on the lookout for “pop up” ads while the video is playing 2. Teacher will ask students to THINK about the following question: a. What is one word you would us ...
BIO306 - National Open University of Nigeria
... Water is a vital component of an animal’s body; it is required for the maintenance of life and other metabolic processes. It forms the primary medium as well as the most essential nutrients in all animals. Water accounts for between 60% and 95% of an animal’s body weight. The water within animals ma ...
... Water is a vital component of an animal’s body; it is required for the maintenance of life and other metabolic processes. It forms the primary medium as well as the most essential nutrients in all animals. Water accounts for between 60% and 95% of an animal’s body weight. The water within animals ma ...
the miracle of the blood and heart
... sought in the publication of these works. Those who encourage others to read these books, to open their minds and hearts and guide them to become more devoted servants of God, render an invaluable service. Meanwhile, it would only be a waste of time and energy to propagate other books that create co ...
... sought in the publication of these works. Those who encourage others to read these books, to open their minds and hearts and guide them to become more devoted servants of God, render an invaluable service. Meanwhile, it would only be a waste of time and energy to propagate other books that create co ...
Chapter 6 The Lymphatic and Immune Systems
... • Has hemolytic function of destroying worn-out RBC’s and releasing hemoglobin for reuse • Also stores extra erythrocytes (?) and keeps the balance between these cells and the plasma of the blood ...
... • Has hemolytic function of destroying worn-out RBC’s and releasing hemoglobin for reuse • Also stores extra erythrocytes (?) and keeps the balance between these cells and the plasma of the blood ...
Aerobic respiration
... Your muscles need energy to contract. This energy comes from respiration. When you exercise you need more energy so that your muscles can contract more frequently and for longer, so the rate of respiration increases the harder you exercise. When you begin exercising, glucose moves into the mitochond ...
... Your muscles need energy to contract. This energy comes from respiration. When you exercise you need more energy so that your muscles can contract more frequently and for longer, so the rate of respiration increases the harder you exercise. When you begin exercising, glucose moves into the mitochond ...
Chapter 2 SEM II Phylum Chordata Phylum chordate includes
... three prime characters that are seen present only in chordates. Of these three mentioned characters, any two should be present in either embryonic/larval or adult stage in the life-cycle of organism 1. Presence of Notochord(Gr noton-back, chordae- cord): It is also called as Chorda-dorsalis. It is s ...
... three prime characters that are seen present only in chordates. Of these three mentioned characters, any two should be present in either embryonic/larval or adult stage in the life-cycle of organism 1. Presence of Notochord(Gr noton-back, chordae- cord): It is also called as Chorda-dorsalis. It is s ...
Nerve activates contraction - Physiol 006
... •The body’s need to rid itself of CO2 is the most important stimulus •Increased levels of carbon dioxide (and thus, a decreased or acidic pH) in the blood increase the rate and depth of breathing •Changes in carbon dioxide act directly on the medulla oblongata ...
... •The body’s need to rid itself of CO2 is the most important stimulus •Increased levels of carbon dioxide (and thus, a decreased or acidic pH) in the blood increase the rate and depth of breathing •Changes in carbon dioxide act directly on the medulla oblongata ...
Systems of the Human Body
... Fun facts about the Nervous System: • There are more nerve cells in the human brain than there are stars in the Milky Way. • The left side of the human brain controls the right side of the body and vice-versa. • As we get older, the brain loses a gram of brain mass per year. ...
... Fun facts about the Nervous System: • There are more nerve cells in the human brain than there are stars in the Milky Way. • The left side of the human brain controls the right side of the body and vice-versa. • As we get older, the brain loses a gram of brain mass per year. ...
BIOL_218_MTX_4_Q_200_111207.4c
... 109. Approximately 85% of all nephrons are cortical nephrons, which perform most of the reabsorptive and secretory functions of the kidneys. A. ...
... 109. Approximately 85% of all nephrons are cortical nephrons, which perform most of the reabsorptive and secretory functions of the kidneys. A. ...
19. ch 18(361-383) RESPIRATION
... easily. As the bronchi become smaller, however, the carmembranes. The effect of this fluid is the same as between tilage decreases in amount. In the bronchioles, there is no two flat pieces of glass joined by a film of water; that is, cartilage at all; what remains is mostly smooth muscle, the surfa ...
... easily. As the bronchi become smaller, however, the carmembranes. The effect of this fluid is the same as between tilage decreases in amount. In the bronchioles, there is no two flat pieces of glass joined by a film of water; that is, cartilage at all; what remains is mostly smooth muscle, the surfa ...
Cardiopulmonary
... above resting values). Thus, in college age students heart rate can increase about three-fold and stroke volume can increase up to two-fold over resting values in order to increase cardiac output during acute exercise. This does not by any means suggest that stroke volume is less important than hear ...
... above resting values). Thus, in college age students heart rate can increase about three-fold and stroke volume can increase up to two-fold over resting values in order to increase cardiac output during acute exercise. This does not by any means suggest that stroke volume is less important than hear ...
Every Food and Health Answer
... clonal expansion/AW; differentiation (of B cell into plasma cell); production of antibodies; there are no memory cells; AVP; e.g. more detail of one of the above ...
... clonal expansion/AW; differentiation (of B cell into plasma cell); production of antibodies; there are no memory cells; AVP; e.g. more detail of one of the above ...
The kidney maintains a stable internal environment.
... An increase in renal arterial pressure causes a rapid and marked increase in sodium and water excretion this is known as PRESSURE NATRIURESIS/DIURESIS. (Remember that RBF and GFR are ...
... An increase in renal arterial pressure causes a rapid and marked increase in sodium and water excretion this is known as PRESSURE NATRIURESIS/DIURESIS. (Remember that RBF and GFR are ...
UNIT I The cell and general physiology
... We have attempted to make this review as accurate as possible, and we hope that it will be a valuable tool for your study of physiology. We invite you to send us your critiques, suggestions for improvement, and notifications of any errors. I am grateful to each of the contributors for their careful ...
... We have attempted to make this review as accurate as possible, and we hope that it will be a valuable tool for your study of physiology. We invite you to send us your critiques, suggestions for improvement, and notifications of any errors. I am grateful to each of the contributors for their careful ...
Homeostasis
![](https://commons.wikimedia.org/wiki/Special:FilePath/Wiki_tarantula.jpg?width=300)
Homeostasis or homoeostasis (homeo- + -stasis) is the property of a system in which variables are regulated so that internal conditions remain stable and relatively constant. Examples of homeostasis include the regulation of temperature and the balance between acidity and alkalinity (pH). It is a process that maintains the stability of the human body's internal environment in response to changes in external conditions.The concept was described by French physiologist Claude Bernard in 1865 and the word was coined by Walter Bradford Cannon in 1926. Although the term was originally used to refer to processes within living organisms, it is frequently applied to automatic control systems such as thermostats. Homeostasis requires a sensor to detect changes in the condition to be regulated, an effector mechanism that can vary that condition, and a negative feedback connection between the two.